Dezhou Jingmei Petroleum Machinery company is a downhole tools manufacturers in China.Today we share some rules of conventional directional drilling technology used in horizontal drilling with you.
1. As long as possible, the drill string must be kept rotating so as to overcome the friction force and avoid sticking.
2. In the main well section, that is, the first deflecting turning point and the corrected azimuth angle, the motor with bending joint is restricted.
3. It is better to set up the angle with rotary drilling at the beginning of deflecting.
4. Use the turbine assembly drilling tool to drill the drill string slowly so as to drill out the steep and straight section, especially the horizontal well section.
5.When drilling vertical and inclined shafts, be careful to avoid cornering errors, excessive bending and large correction.
6. Simplified downhole BHA, fewer trips.
7. Turbine drilling horizontal well, the best use of BHA overall longevity, but also can reduce the requirements of drilling pressure small trips.